Ohmite 22J4R0 2W 4 Ohms Wirewound Resistor - Equivalent & Substitute Parts

Part Overview

The Ohmite 22J4R0 is a 2W wirewound resistor with 4 ohms resistance and ±5% tolerance, designed for through-hole axial applications. It features flame retardant coating and safety construction suitable for industrial and electronic equipment applications. The part is currently active in production. Substitute parts may be required due to packaging availability, compliance requirements, or inventory constraints in specific distribution channels.

Substiute Parts

22J4R0

OhmiteIn Stock: 95422J4R0 Datasheet

Current PartRFQ

22J4R0E

OhmiteIn Stock: 70022J4R0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 22J4R0E is classified as a parametric equivalent to the 22J4R0. Substitution is valid based on the following matching electrical and mechanical parameters:

• Resistance value: 4 Ohms (identical)
• Tolerance: ±5% (identical)
• Power rating: 2W (identical)
• Composition: Wirewound (identical)
• Package type: Axial (identical)
• Physical dimensions: 0.220" Dia x 0.421" L (5.60mm x 10.70mm) (identical)
• Temperature coefficient: ±50ppm/°C (identical)
• Features: Flame Retardant Coating, Safety (identical)
• Terminations: 2 (identical)

The primary difference between these parts is packaging format (Box vs. Bulk) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 22J4R0 and 22J4R0E are active production parts from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on the following criteria:

22J4R0 (Box Packaging): Select this part when RoHS non-compliant components are acceptable for the application and box packaging is preferred for inventory management or traceability requirements.

22J4R0E (Bulk Packaging): Select this part when ROHS3 compliance is required by design specifications, regulatory requirements, or customer mandates. The bulk packaging format is suitable for high-volume manufacturing environments.

Both parts are electrically and mechanically interchangeable in circuit applications requiring a 4-ohm, 2W wirewound axial resistor with ±5% tolerance and ±50ppm/°C temperature coefficient.

Frequently Asked Questions (FAQ)

Q: Are the 22J4R0 and 22J4R0E electrically identical?

A: Yes. Both parts have identical resistance (4 Ohms), tolerance (±5%), power rating (2W), temperature coefficient (±50ppm/°C), and composition (wirewound). They are electrically interchangeable.

Q: What is the difference between these two parts?

A: The primary differences are packaging format (Box vs. Bulk) and RoHS compliance status (non-compliant vs. ROHS3 compliant). The electrical and mechanical specifications are identical.

Q: Can I substitute 22J4R0E for 22J4R0 in my design?

A: Yes, provided that ROHS3 compliance is acceptable or required for your application. The physical dimensions and electrical characteristics are identical, ensuring direct compatibility in axial through-hole mounting.

Q: Can I substitute 22J4R0 for 22J4R0E?

A: Substitution is possible only if RoHS non-compliance is acceptable for your application. If ROHS3 compliance is a design or regulatory requirement, the 22J4R0 is not suitable.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical dimensions of 0.220" Dia x 0.421" L (5.60mm x 10.70mm), ensuring identical PCB footprint and mounting compatibility.

Q: What does the packaging format difference mean for procurement?

A: Box packaging (22J4R0) is typically used for smaller quantity orders or when individual part traceability is required. Bulk packaging (22J4R0E) is optimized for high-volume manufacturing and automated assembly processes.